# Unistellar vs Davidson One

The clearest difference is update cadence: Unistellar at every 5 weeks against Davidson One's every 3 months. Davidson One's advantage is iOS requirement (16.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Unistellar ships an update every 5 weeks, Davidson One every 3 months. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | Unistellar | Davidson One |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (101 ratings)](https://appshunter.io/ios/app/unistellar/id1435141427/reviews)** | — |
| Number of ratings | **101** | — |
| Positive reviews | 44.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | Free | — |
| Size | 524 MB | 71 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Unistellar](https://appshunter.io/developer/1384354590) | [The Trustees of Davidson College](https://appshunter.io/developer/503953597) |

## What reviewers say

### Unistellar

[App page](https://appshunter.io/ios/app/unistellar/id1435141427)

Control your smart telescope, explore thousands of celestial objects, and observe them live. Save and share your discoveries, or contribute to real scientific research with citizen science missions.

**Highlights:** Telescope control, Explore 5000+ celestial objects, Live astronomical observation, Instant image sharing, RAW image download, Citizen science missions

**In-app purchases:** none


### Davidson One

[App page](https://appshunter.io/ios/app/davidson-one/id1612631297)

**Features:** macOS Compatibility, Apple Wallet

**In-app purchases:** none


## Frequently asked questions

### Is Unistellar free?

Unistellar is free to download, with no in-app purchases.

### Is Davidson One free?

Davidson One is free to download, with no in-app purchases.

### Do Unistellar or Davidson One have ads?

Neither Unistellar nor Davidson One shows ads.

### Which is updated more often, Unistellar or Davidson One?

Unistellar ships an update every 5 weeks, and Davidson One every 3 months. Most recently, Unistellar was updated on October 26, 2026 and Davidson One on October 27, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*